Embodiments of the disclosure enable permission to be obtained using nonvisual communication. A system receives a request for authorization of a transaction, identifies an account based on user identifier data included in the request, establishes a communication link with a user device associated with the user account, generates a prompt message identifying a merchant and a transaction amount associated with merchant identifier data and transaction data included in the request, analyze the prompt message to generate a prompt audibly perceivable at the user device, analyze a speech reply received from the user device to generate a feedback message, and analyze the feedback message to determine whether permission to authorize the transaction is obtained. Aspects of the disclosure provide for authorizing a transaction in a secure and user-friendly manner.